Talvez deva tentar algumas variações de ortografia:
efficient programming » efficient processing (Expandir a busca), fragment programming (Expandir a busca)
period efficient » precise efficient (Expandir a busca), cerrado efficient (Expandir a busca), periodic coefficients (Expandir a busca)
python python » pythons python (Expandir a busca), piton python (Expandir a busca), pitons python (Expandir a busca)
coder period » code period (Expandir a busca), modern period (Expandir a busca), under periods (Expandir a busca)
coder coder » coder decoder (Expandir a busca), code code (Expandir a busca), decoder codec (Expandir a busca)
in python » _ python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder coder period efficient programming ) OR ( in python python python programming ))~.